Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of nonvested restricted stock units activity

A summary of the Company’s nonvested restricted stock for the nine months ended September 30, 2020 is as follows:

	Shares subject to restriction (thousands)	Weighted average grant date fair value
Nonvested at December 31, 2019	1,664	$	44.26
Granted	766	$	34.05
Vested	(466)	$	46.00
Forfeited	(9)	$	42.23
Nonvested at March 31, 2020	1,955	$	39.87
Granted	31	$	29.67
Vested	(75)	$	41.19
Forfeited	(24)	$	40.49
Nonvested at June 30, 2020	1,887	$	39.65
Granted	9	$	37.77
Vested	(9)	$	38.68
Forfeited	(33)	$	39.80
Nonvested at September 30, 2020	1,854	$	39.64

Schedule of share-based compensation, performance shares award unvested activity

A summary of the status of the Company’s nonvested performance share units for the three and nine months ended September 30, 2020 is as follows:

	Total Stockholder Return			Relative Revenue Growth			Adjusted Earnings Per Share
	Number of shares (thousands)	Weighted average grant date fair value		Number of shares (thousands)	Weighted average grant date fair value		Number of shares (thousands)	Weighted average grant date fair value
Nonvested at December 31, 2019	240	$	64.61	240	$	48.52	—	$	—
Granted	142	$	28.55	142	$	34.11	115	$	34.11
Nonvested at March 31, 2020	382	$	48.02	382	$	41.54	115	$	34.11
Forfeited	(8)	$	50.17	(8)	$	42.35	(3)	$	34.11
Nonvested at June 30, 2020	374	$	47.97	374	$	41.52	112	$	34.11
Granted	2	$	28.55	2	$	37.77	2	$	37.77
Forfeited	(5)	$	73.11	(5)	$	52.64	—	$	—
Nonvested at September 30, 2020	371	$	47.60	371	$	41.35	114	$	34.16

The Company recorded compensation expense for performance share units in the periods presented below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2020		2019		2020		2019
Total Stockholder Return	$	1	$	2	$	4	$	5
Relative Revenue Growth	4		3		3		3
Adjusted Earnings Per Share	—		—		1		—
Total compensation expense	$	5	$	5	$	8	$	8